共 28 条
- [3] DITHIOPHOSPHORIC-ACID-O,O-DIETHYLESTER FOR TRACE ENRICHMENT ON ACTIVATED CARBON .2. ANALYSIS OF HIGH-PURITY IRON CHROMIUM AND MANGANESE [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1982, 310 (3-4): : 230 - 233
- [4] BODE H, 1957, Z ANAL CHEM, V157, P414
- [5] CONTRIBUTION TO THE PREPARATION OF TRACE CONCENTRATE TARGETS FOR PIXE MULTI-ELEMENT ANALYSIS .2. EXAMPLES OF APPLICATION [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1983, 316 (02): : 221 - 226
- [6] CONTRIBUTION TO THE PREPARATION OF TRACE CONCENTRATE TARGETS FOR PIXE MULTI ELEMENT ANALYSIS .1. PRINCIPLES [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1982, 311 (03): : 252 - 258
- [8] X-RAY FLUORIMETRIC AND ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION OF TRACES OF ELEMENTS IN THE NG-ML RANGE IN AQUEOUS-SOLUTIONS AFTER PRECONCENTRATION BY PRECIPITATE EXCHANGE ON THIN SULFIDE LAYERS [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1979, 295 (2-3): : 97 - 109
- [9] SPURENANREICHERUNGEN IN ACKERBODEN MIT SELEKTIVER ABTRENNUNG VON EISEN [J]. FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1958, 161 (05): : 354 - 362